5245133220 has 72 divisors (see below), whose sum is σ = 16128226296. Its totient is φ = 1379538432.

The previous prime is 5245133203. The next prime is 5245133221. The reversal of 5245133220 is 223315425.

It is a happy number.

5245133220 is a `hidden beast` number, since 524 + 5 + 133 + 2 + 2 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 780755364 + 4464377856 = 27942^2 + 66816^2 .

It is a super-2 number, since 2×5245133220² = 55022844991095136800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5245133221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 186447 + ... + 212726.

It is an arithmetic number, because the mean of its divisors is an integer number (224003143).

Almost surely, 2^5245133220 is an apocalyptic number.

It is an amenable number.

5245133220 is an abundant number, since it is smaller than the sum of its proper divisors (10883093076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5245133220 is a wasteful number, since it uses less digits than its factorization.

5245133220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399261 (or 399256 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 5245133220 is about 72423.2919715750. The cubic root of 5245133220 is about 1737.4761069813.

Adding to 5245133220 its reverse (223315425), we get a palindrome (5468448645).

The spelling of 5245133220 in words is "five billion, two hundred forty-five million, one hundred thirty-three thousand, two hundred twenty".